diff --git a/integration-tests/__tests__/deploy-database.spec.js b/integration-tests/__tests__/deploy-database.spec.js
index d3c109bf..8b41b322 100644
--- a/integration-tests/__tests__/deploy-database.spec.js
+++ b/integration-tests/__tests__/deploy-database.spec.js
@@ -250,4 +250,51 @@ describe('Deploy database', () => {
       expect(res.rows[0].cnt.toString()).toEqual('3');
     })
   );
+
+  test.each(engines.map(engine => [engine.label, engine]))(
+    'Deploy preloaded data - update - %s',
+    testWrapper(async (conn, driver, engine) => {
+      await testDatabaseDeploy(conn, driver, [
+        [
+          {
+            name: 't1.table.yaml',
+            json: {
+              name: 't1',
+              columns: [
+                { name: 'id', type: 'int' },
+                { name: 'val', type: 'int' },
+              ],
+              primaryKey: ['id'],
+              data: [
+                { id: 1, val: 1 },
+                { id: 2, val: 2 },
+                { id: 3, val: 3 },
+              ],
+            },
+          },
+        ],
+        [
+          {
+            name: 't1.table.yaml',
+            json: {
+              name: 't1',
+              columns: [
+                { name: 'id', type: 'int' },
+                { name: 'val', type: 'int' },
+              ],
+              primaryKey: ['id'],
+              data: [
+                { id: 1, val: 1 },
+                { id: 2, val: 5 },
+                { id: 3, val: 3 },
+              ],
+            },
+          },
+        ],
+      ]);
+
+      const res = await driver.query(conn, `select val from t1 where id = 2`);
+      expect(res.rows[0].val.toString()).toEqual('5');
+    })
+  );
 });
diff --git a/integration-tests/engines.js b/integration-tests/engines.js
index f73f0c98..ed1bcaf0 100644
--- a/integration-tests/engines.js
+++ b/integration-tests/engines.js
@@ -116,8 +116,8 @@ const engines = [
 
 const filterLocal = [
   // filter local testing
-  'MySQL',
-  'PostgreSQL',
+  '-MySQL',
+  '-PostgreSQL',
   '-SQL Server',
   'SQLite',
   '-CockroachDB',
diff --git a/packages/api/src/shell/generateDeploySql.js b/packages/api/src/shell/generateDeploySql.js
index 2364b119..4056428f 100644
--- a/packages/api/src/shell/generateDeploySql.js
+++ b/packages/api/src/shell/generateDeploySql.js
@@ -41,17 +41,14 @@ async function generateDeploySql({
     noRenameColumn: true,
   };
   const currentModelPaired = matchPairedObjects(deployedModel, currentModel, opts);
-  const currentModelPairedPreloaded = await enrichWithPreloadedRows(
-    deployedModel,
-    currentModelPaired,
-    pool,
-    driver
-  );
+  const currentModelPairedPreloaded = await enrichWithPreloadedRows(deployedModel, currentModelPaired, pool, driver);
+
+  // console.log('currentModelPairedPreloaded', currentModelPairedPreloaded.tables[0]);
   // console.log('deployedModel', deployedModel.tables[0]);
   // console.log('currentModel', currentModel.tables[0]);
   // console.log('currentModelPaired', currentModelPaired.tables[0]);
   const res = getAlterDatabaseScript(
-    currentModelPaired,
+    currentModelPairedPreloaded,
     deployedModel,
     opts,
     currentModelPairedPreloaded,
diff --git a/packages/tools/src/SqlDumper.ts b/packages/tools/src/SqlDumper.ts
index 88427a2b..65d327c1 100644
--- a/packages/tools/src/SqlDumper.ts
+++ b/packages/tools/src/SqlDumper.ts
@@ -623,7 +623,7 @@ export class SqlDumper implements AlterProcessor {
           was = true;
           this.put('^update %f ^set ', table);
           this.putCollection(', ', updated, col => this.put('%i=%v', col, row[col]));
-          this.put(' ^ where ');
+          this.put(' ^where ');
           this.putCollection(' ^and ', key, col => this.put('%i=%v', col, row[col]));
         }
       } else {
diff --git a/packages/tools/src/preloadedRowsTools.ts b/packages/tools/src/preloadedRowsTools.ts
index 882bc8a9..39e77705 100644
--- a/packages/tools/src/preloadedRowsTools.ts
+++ b/packages/tools/src/preloadedRowsTools.ts
@@ -11,9 +11,9 @@ export async function enrichWithPreloadedRows(
   const repl = {};
   for (const tableTarget of dbTarget.tables) {
     const tableModel = dbModel.tables.find(x => x.pairingId == tableTarget.pairingId);
-    if (tableModel.preloadedRows?.length || 0 == 0) continue;
+    if ((tableModel.preloadedRows?.length || 0) == 0) continue;
     const keyColumns = tableModel.preloadedRowsKey || tableModel.primaryKey?.columns?.map(x => x.columnName);
-    if (keyColumns?.length || 0 == 0) continue;
+    if ((keyColumns?.length || 0) == 0) continue;
     const dmp = driver.createDumper();
     if (keyColumns.length == 1) {
       dmp.putCmd(